arduino-php-wrapper (inspired by Johnny-Five JS)

If you are wondering how to control the Arduino serial port via PHP, here is the solution. The arduino:// wrapper is a easy and straightforward way to write and read data from Arduino.

Install

composer require marabesi/arduino-php-wrapper

Usage

To read data from Arduino serial just use the regular I/O functions in PHP such as fread or file_get_contents

\Arduino\Wrapper::register();

//reads data from Arduino
$resource = fopen('arduino://ttyUSB0', 'r+');
print fread($resource, 1024);

Or if you prefer, you can use file_get_contents and get the same result

print file_get_contents('arduino://ttyUSB0');

To write data in the Arduino serial is as easy as it could be

\Arduino\Wrapper::register();

//writes data to Arduino
$resource = fopen('arduino://ttyUSB0', 'r+');
print fwrite('hello Arduino');

\Arduino\Wrapper::register();

print file_put_contents('arduino://hello Arduino');

OOP

You can use in your project in a OOP style

Sending data

$writer = new Arduino\Writer(new Arduino\Wrapper());
$bytes = $writer->out('ttyUSB0', 'from oop');

Reading data

$arduino = new \Arduino\Wrapper();

$writer = new \Arduino\Reader($arduino);
while (true) {
    print $writer->from('/dev/cu.usbmodem1411');
}

Improvements

As you can see is really simple and we can improve it much more as the sensors are identified.

• Prevent arduino from reload everytime a request is made by PHP

Slides (talks based on this lib)

Introduction to IoT and PHP - Nerdzão day #1

IoT powered by PHP and streams - PHPExperience2017

Control your house with the elePHPant - PHPConf2016